Abstract: Electrostatic powder coating apparatus having an outer filter belt from which excess powder is removed by an elongated pick-up tube which extends across the width of the belt. The ends of the filter belt, instead of being joined, are overlapped, such that the uppermost end of the belt faces the direction which is opposite to the travel direction of the belt, avoiding interference with the powder pick-up tube.

Abstract: Electrostatic powder coating installation includes an enclosure through which a movable filter belt extends. A suction device draws air and excess powder towards one face of the filter belt which has a predetermined permeability so as to collect the powder on one face thereof and to allow air to flow therethrough to an exhaust plenum. A second movable belt formed of a coarse, monofilament, screen material is disposed in registry with the other face of the filter belt to prevent contact between the filter belt and the exhaust plenum. A cleaning device removes the excess powder from the one face of the filter belt; which powder, through a separator, is collected in a supply container for reapplication to the workpiece.